| West Odessa to Orbetello | 5,806.52 mi (9,344.69 km) |
| West Odessa to Oria | 6,145.92 mi (9,890.91 km) |
| West Odessa to Oristano | 5,806.30 mi (9,344.33 km) |
| West Odessa to Orta Nova | 6,032.98 mi (9,709.15 km) |
| West Odessa to Orte | 5,852.16 mi (9,418.14 km) |
| West Odessa to Ortona | 5,935.84 mi (9,552.81 km) |
| West Odessa to Orvieto | 5,830.02 mi (9,382.51 km) |
| West Odessa to Orzinuovi | 5,630.41 mi (9,061.26 km) |
| West Odessa to Osimo | 5,849.84 mi (9,414.41 km) |
| West Odessa to Ospitaletto | 5,629.26 mi (9,059.42 km) |
| West Odessa to Ostuni | 6,133.07 mi (9,870.22 km) |
| West Odessa to Ottaviano | 6,006.37 mi (9,666.32 km) |
| West Odessa to Ovada | 5,611.95 mi (9,031.55 km) |
| West Odessa to Ozieri | 5,795.17 mi (9,326.43 km) |
| West Odessa to Paceco | 6,055.47 mi (9,745.34 km) |
